Novak Djokovic targeting Australian Open glory is nothing new - but there will be one major difference this time around as great rival Andy Murray joins his team.

The 37-year-old Serb, who is chasing a record 25th Grand Slam singles title, announced the surprise appointment of long-time friend Murray in November.

Djokovic shared countless memorable moments and numerous battles for the sport's biggest prizes with Britain's three-time major winner Murray, who retired from tennis last year.

It is perhaps unsurprising that Djokovic - level with Australian Margaret Court for the most major singles titles in history - has credited Murray with "bringing a fresh look" to his tennis, given few know his game so intimately.

Here are the standout moments which defined their epic rivalry.